---
product_id: 48536118
title: "39240 Waterproof Stem Type Thermometer"
brand: "extech"
price: "AR$115905"
currency: ARS
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.ar/products/48536118-39240-waterproof-stem-type-thermometer
store_origin: AR
region: Argentina
---

# Waterproof stainless steel stem 0.1° digital resolution Wide temp range -40 to 392°F 39240 Waterproof Stem Type Thermometer

**Brand:** extech
**Price:** AR$115905
**Availability:** ✅ In Stock

## Summary

> 🌡️ Stay ahead of the curve with pinpoint precision!

## Quick Answers

- **What is this?** 39240 Waterproof Stem Type Thermometer by extech
- **How much does it cost?** AR$115905 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/48536118-39240-waterproof-stem-type-thermometer)

## Best For

- extech enthusiasts

## Why This Product

- Trusted extech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Lightweight:** Slim 5.9-inch design weighing just 0.7oz fits perfectly in your toolkit or pocket.
- • **Built to Brave the Elements:** Waterproof stainless steel stem ensures durability in any environment.
- • **Ready to Use Out of the Box:** Includes LR44 battery so you can start measuring instantly—no extra purchases needed.
- • **Precision at Your Fingertips:** Switch effortlessly between °C and °F for exact readings every time.
- • **Track Extremes with Confidence:** MAX/MIN recall lets you monitor temperature highs and lows without missing a beat.

## Overview

The Extech 39240 is a portable, waterproof stem thermometer featuring a 2.75-inch stainless steel probe, a wide temperature range from -40 to 392°F (-40 to 200°C), and a high-resolution digital display with 0.1° accuracy. It offers MAX/MIN temperature recall, a compact lightweight design, and comes ready to use with an included LR44 battery.

## Description

Full description not available

## Features

- 2.75" (70mm) Stainless steel stem
- °C/°F switchable ranges of -40 to 392°F (-40 to 200°C)
- MAX/MIN recall of high and low temperatures
- Digital display with 0.1° resolution
- Dimensions: 5.9 x 0.8 x 0.7" (150 x 20 x 18mm); Weight: 0.7oz (20g)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Extech |
| Part number | 39240 |
| Item Weight | 50 g |
| Product Dimensions | 1.78 x 14.99 x 2.04 cm; 50 g |
| Batteries | 1 LR44 batteries required. (included) |
| Item model number | 39240 |
| Colour | Green |
| Style | 39240 |
| Material | PE_(Polyethylene), stainless stee |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Measurement System | inch |
| Display style | Digital |
| Special Features | Portable |
| Included components | Complete with one LR44 button |
| Batteries included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |

## Product Details

- **Brand:** Extech
- **Special feature:** Portable
- **Colour:** Green
- **Age range (description):** Adult
- **Included components:** Complete with one LR44 button
- **Outer material:** Stainless Steel
- **Display type:** Digital
- **Product care instructions:** Wipe Clean
- **Unit count:** 1.0 count
- **Power source:** Battery Powered

## Images

![39240 Waterproof Stem Type Thermometer - Image 1](https://m.media-amazon.com/images/I/51GFrVnktXL.jpg)

## Questions & Answers

**Q: How many seconds does it take to give temperature reading?**
A: If the probe is already in the medium to measure when you turn it on, then the reading is almost instantaneous. However, if measuring liquids, there will be a delay if you move from cold to hot depending on the temperature difference and this may take up to about 5 seconds. Moving from hot to cold is similar. If measuring air temperature this will generally take longer.
Hope this helps.

**Q: does it come with calibration certificate**
A: Hello, thanks for your question, all of our meters came factory calibrated, you can request a certificate of compliance which confirms that FLIR is an ISO9001:2015 certified company and that your product was adjusted in the factory, however it will not include calibration data. If you have any questions feel free to contact us on our technical support line at 866-477-3687 opt 3

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable, Accurate and Robust - Easy to use.
*by N***A on 31 May 2025*

This is really a good buy if you are looking for a reliable and accurate thermometer to measure liquids, food and even ambient temperature. Has worked faultlessly.

### ⭐⭐⭐⭐⭐ Temperature prod
*by B***Y on 26 February 2023*

Purchased to carry out household water temperature tests and works a treat. Seems quite accurate and does the job splendidly. A very good and handy purchase. Used for LD risk assessment.

### ⭐⭐⭐⭐⭐ wow that is what I need :-)
*by J***K on 16 April 2016*

I love it2 years latterI have use it for two years and it is great stuff for sure.. after this time and so many work and wash, lid for battery come loose and water come in, dry out and 5 month again, but the battery cover is hold in only with very small plastic, which break out at all so I need to use tape for presing the battery in, but it is still working well... any way, this kinde of probs are all same system and all battery have very similar cover. I can still recomend it..

## Frequently Bought Together

- Extech Instruments 39240 Waterproof Stem Thermometer,Green
- Water Management Legionella Log Book: Legionella Risk Assessment Record Keeping Logbook, Record and Track All Water Temperature Checks
- HSE Health And Safety Law Poster A3 FWC30/A3: what you need to know (Statutory Instruments 2024)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-22*